[NLRS] 900 and 10G amps needed

[John P. Toscano]

wb0ljc@juno.com wrote:

> I am looking for a 12V low drive amp for 900 MHz.
> This would be used to help Mike, KB0TZA, get his
> 902 transverter on the air for the January contest.
> He may be the only EN35 station! Something with a
> 1 to 2 W output and 10mW input would work great.
> Linear operation is preferred. SMA connectors would
> also simplify assembly. Let me know if you can
> help Mike. If nothing else is found, I will loan him a
> low power driver amp that I have. However, the
> power output is only about 400 mW.

I don't know if this is what you and Mike had in mind, in the event that 
his budget is extremely tight, but Down East Microwave has the following 
items that may be of use:
   3310PA ...... 10 mW in, 10 W out, assembled/tested amp....... $120
   3310PACK .... same, but complete kit......................... $ 80
   3310PAK ..... same, but no enclosure or heatsink............. $ 55
   3310PAPCB ... PC board and documentation only................ $ 15
   PF0011 ...... Hybrid power module, 10W output, 10mW input.... $ 35

If you had a suitable enclosure/heatsink around, the 3310PAK would seem 
to be a pretty good deal for $55, assuming you had the time to put it 
together (which shouldn't take long, I would guess).  And that way you 
could build it with SMA's instead of BNC females that come on the 
complete kit or assembled version (but again, I would imagine that you 
could talk Steve into shipping one of the kits with SMA's instead of 
BNC's anyway).

Here is the essential info from their web site:

The 3310PA is a broadband linear power amplifier covering the entire 
33cm band with no tuning. It has a linear power output of 9Watts min. 
with 10 mW of drive or a saturated output of over 10Watts. The 3310PA 
has a built in gain adjustment control that enables maximum power output 
with lower drive levels. Type BNC connectors are used on both input and 
output. The 3310PA requires well regulated 13.8 VDC at 2A for full power 
output. Keying is done by applying voltage. Being that it is a linear 
amplifier it can be used for all modes in the 33 cm band (ATV @ reduced 
output ratings). Do not exceed 20mW input RF drive or 15VDC. Do not 
adjust idle current above 300mA.

Down East Microwave Inc. 954 Rt. 519, Frenchtown, NJ 08825 USA
Tel. 908-996-3584(Voice) 908-996-3702(Fax)
http://www.downeastmicrowave.com